Home / 13,053.29-18,013.28-7,387.94

Finding the Fourth Proportional to 13,053.29, 18,013.28 and 7,387.94

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Solution

The fourth proportional to 13,053.29, 18,013.28 and 7,387.94 is: 10,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.29 : 18,013.28 = 7,387.94 : x
  2. Step 2: Convert to fraction form
    13,053.29/18,013.28 = 7,387.94/x
  3. Step 3: Cross multiply
    13,053.29x = 18,013.28 × 7,387.94
  4. Step 4: Simplify right side
    13,053.29x = 133,081,039.94
  5. Step 5: Solve for x
    x = 133,081,039.94/13,053.29
  6. Step 6: Final answer
    x = 10,195.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.